scholarly journals Discriminant function analysis for opium and seed yield in opium poppy (Papaver somniferum L.)

Genetika ◽  
2008 ◽  
Vol 40 (2) ◽  
pp. 109-120
Author(s):  
H.K. Yadav ◽  
S. Shukla ◽  
S.P. Singh
Keyword(s):  
Plant Height ◽  
Seed Yield ◽  
Function Analysis ◽  
Positive Association ◽  
Papaver Somniferum ◽  
Yield Component ◽  
Opium Poppy ◽  
Dual Purpose ◽  
Single Character ◽  
Selection Indices

Opium poppy (Papaver somniferum L.) is an important medicinal plant of pharmacopoel uses. Opium latex and its derivatives are used in different medicines as analgesic, narcotic, sedative, sudorific, hyponitic, antispasmodic, ant diarrhea and cough etc. Genetic improvement in opium and seed yield, component breeding is important and selection based on multiple characters is more beneficial in developing desired plant types. Therefore the present study was made on group of 22 strains of opium poppy to find out variability and suitable selection indices for opium and seed yield. Heritability in broad sense was high for capsule weight/plant, plant height, capsule length, stem diameter and opium yield. The discriminant functions based on single character were less efficient while on the basis of combination it was in general more efficient. The comparison of different functions revealed that capsule weight/plant, capsule length, plant height are major yield component and thus practicing selection for attainment of high opium and seed yield lines, maximum weight age could be given to these characters. The positive association of opium yield and seed yield suggested that by adopting suitable component breeding and selection, a dual-purpose variety (opium and seed yield) may be developed.

Analysis of yield factors in segregating populations and their implications in selection of flax (Linum usitatissimum)

1983 ◽  
Vol 25 (5) ◽  
pp. 495-501 ◽  
Author(s):  
S. K. Rao ◽  
S. P. Singh
Keyword(s):  
Plant Height ◽  
Seed Yield ◽  
Linum Usitatissimum ◽  
Seed Weight ◽  
Correlation Coefficients ◽  
Positive Association ◽  
Direct Selection ◽  
Linum Usitatissimum L ◽  
Selection Indices ◽  
Efficient Prediction

Correlation coefficients were calculated in all possible combinations between days to maturity, plant height, number of capsules, primary branches, secondary branches, average number of seeds per capsule, 1000-seed weight, and seed yield per plant in 48 F3 populations of flax (Linum usitatissimum L.). None of these attributes had negative association with seed yield. The majority of the yield components had a strong positive association with seed yield and the correlation coefficient of plant height with seed yield was negligible. Multiple regression analysis revealed that the regression equation involving number of secondary branches and number of capsules per plant had efficient prediction power. Path analysis studies also revealed that number of capsules followed by secondary branches and 1000-seed weight were the major components influencing seed yield. Selection indices based on primary branches, secondary branches, number of capsules, 1000-seed weight, and seed yield per plant were 203.83% superior to direct selection for seed yield.

scholarly journals Genetic studies and their implication to breed desired plant type in opium poppy, Papaver somniferum L.

Genetika ◽  
2004 ◽  
Vol 36 (1) ◽  
pp. 69-81 ◽  
Author(s):  
S.P. Singh ◽  
S. Shukla ◽  
H.K. Yadav
Keyword(s):  
Plant Height ◽  
Seed Yield ◽  
Selection Index ◽  
Papaver Somniferum ◽  
Opium Poppy ◽  
Path Coefficient ◽  
Plant Type ◽  
Plant Seed ◽  
Component Traits ◽  
High Heritability

The extent of genetic variability, heritability, correlation coefficient and path analysis were analyzed for opium yield, seed yield and eight component traits in a group of 101 germplasm lines of different ecogeographical origin. Heritability was high for all the characters except capsules/plant. High heritability coupled with high genetic advance and coefficient of variability was noticed for capsule weight/plant, capsule area, husk yield/plant, seed yield/plant, opium yield/plant and leaves/plant. Opium yield, seed yield, husk yield and capsule weight exhibited positively significant correlation among themselves and these four characters had also positive significant genotypic correlation with plant height, branches/plant, capsules/plant, capsule area and leaves/plant. Path coefficient analysis indicated that capsule weight/plant had highest direct path towards opium yield (2.267) followed by capsules/plant (0.291), capsule area (0.203), plant height (0.155) and leaves/plant (0.101). Considering the direct and indirect selection of major contributors, a plant type in opium poppy (Papaver somniferum L.) based on multiple selection index has been discussed to enhance opium yield on one hand and dual purpose varieties (opium and seed yield) on the other hand.

scholarly journals Effects of sulphur on the yield, yield component characters and oil content of oilseed rape

2021 ◽  
Vol 66 (1) ◽  
pp. 17-25
Author(s):  
Valiollah Rameeh ◽  
Maryam Niakan ◽  
Mohammad Mohammadi
Keyword(s):  
Brassica Napus ◽  
Plant Height ◽  
Oilseed Rape ◽  
Seed Yield ◽  
Oil Content ◽  
Statistical Difference ◽  
Mean Value ◽  
Yield Component ◽  
Brassica Napus L ◽  
Significant Statistical Difference

The effects of four sulphur levels: S0, S1, S2 and S3, including 0, 12, 24 and 36 kg S ha-1, respectively, along with 115 kg N ha-1 were studied on yield-related traits of oilseed rape (Brassica napus L.). The significant variance of treatments was determined for plant height, yield component characters, seed yield and oil content. The sulphur application significantly increased most of the traits compared to the S0 level. The S3 (36 kg S ha-1) treatment led to the highest mean value of plant height (132 cm) which was classified with S2 (24 kg S ha-1) in the same statistical group. Sulphur had an increasing effect on pods per plant, and it ranged from 92 to 196 for S0 and S3 applications, respectively. S0 and S1 with 92 and 121 pods per plant were grouped in the same statistical group. In addition, S2, and S3 with 165 and 196 pods per plant showed no significant statistical difference. The sulphur application significantly increased seed yield compared to control (S0 level), and it ranged from 2744 to 3215 kg ha-1 in S0 and S3, respectively. The average oil contents of 45.69, 46.96, 47.46 and 49.53 % were detected for 0, 12, 24 and 36 kg S ha-1, respectively.

scholarly journals Heterobeltiosis and interrelationship of some of important quantitative traits in oilseed rape genotypes

2019 ◽  
Vol 4 (1) ◽  
pp. 591-598
Author(s):  
Valiollah Rameeh
Keyword(s):  
Plant Height ◽  
Oilseed Rape ◽  
Seed Yield ◽  
Seed Weight ◽  
Selection Criterion ◽  
Yield Component ◽  
Genetic Effects ◽  
Narrow Sense Heritability ◽  
Additive Genetic Effects ◽  
Half Diallel

AbstractHalf diallel crosses of eight spring genotypes of oilseed rape (Brassica napus L.) were considered to evaluate heterobeltiosis effects of plant height, yield component characters, seed yield and harvest index. Significant mean squares of general and specific combining abilities (GCA and SCA) were determined for all the traits except 1000-seed weight demonstrating prominence of additive and non additive genetic effects for the mentioned traits. Narrow-sense heritability estimates were high for siliquae on main raceme and 1000-seed weight representing the major importance of additive genetic effects for the characters. Most of the crosses with significant positive high parent heterosis for seed yield had also significant heterotic effects for siliquae per plant; therefore, this trait can be considered as indirect selection criterion for enhancing seed yield. Seed yield was significantly correlated with the traits including plant height, siliquae on main raceme and siliquae per plant based on mean performances of the traits and this result was confirmed with correlations based on heterobeltiosis. The crosses including L41×LF2 and L31×L401 with highly significant heterobeltiosis estimates of grain yield were superior combinations for breeding this trait. which proved good specific combiners for most of the traits.

Response of Cowpea [Vigna unguiculata (L.) Walp] Genotypes under Residual Moisture Condition in Rice-Fallow Area of Goa State, India

2020 ◽  
Author(s):  
K. K. Manohara ◽  
Shaiesh . .Morajkar ◽  
Yogini Shanbhag
Keyword(s):  
Plant Height ◽  
Seed Yield ◽  
Coefficient Of Variation ◽  
Harvest Index ◽  
Residual Moisture ◽  
Dual Purpose ◽  
Moisture Condition ◽  
Straw Yield ◽  
Positive Direct ◽  
High Seed Yield

A field experiment was conducted during rabi season 2018-19 to study the response of 23 cowpea genotypes grown under residual moisture condition in rice-fallow situation of Goa state. Analysis of variance revealed significant differences among the genotypes for all the eleven characters, justifying the selection of genotypes for the study. The estimate of Phenotypic Coefficient of Variation (PCV) and Genotypic Coefficient of Variation (GCV) were high (>20%) for seed yield, straw yield, pods per plant and 100 seed weight. Heritability and genetic advance as per cent mean estimates were high for most of the characters except for days to 50 per cent flowering, days to maturity and plant height. Characters plant height, pods per plant, straw yield and harvest index showed positive and significant association with seed yield. Path analysis based on seed yield, as a dependent variable, revealed that straw yield and harvest index had the highest positive direct effect on seed yield. Therefore, maximum importance should be given to these traits during the selection for achieving the higher seed yield under rice-fallow situation. Three promising genotypes identified from this study viz., PCP-1131, SKAU-C- 407 and RC 101 would serve as dual-purpose cowpea under rice-fallow areas due to their high seed yield and straw yield

scholarly journals Genetic Variability and Path Analysis of Groundnut (Arachis hypogaea L.)

1970 ◽  
Vol 9 (1-2) ◽  
pp. 29-36 ◽  
Author(s):  
MA Zaman ◽  
M Tuhina-Khatun ◽  
MZ Ullah ◽  
M Moniruzzamn ◽  
KH Alam
Keyword(s):  
Genetic Variability ◽  
Plant Height ◽  
Seed Yield ◽  
Agricultural Research ◽  
Block Design ◽  
Positive Association ◽  
Research Station ◽  
Genetic Advance ◽  
Days To Maturity ◽  
Positive Direct

An experiment was conducted at the Research farm of Regional Agricultural Research Station, BARI, Hathazari, Chittagong during Rabi season (December to April), 2009-2010 for estimation of genetic variability, genetic parameters and correlation coefficient among different yield components in a randomized block design with three replications. Thirty four groundnut genotypes were tested in the experiment. Highly significant variations were observed among the genotypes for all the characters studied. The highest genetic coefficient of variation was observed for karnel yield per hectare, followed by karnel yield per plant, branches per plant, immature and mature nuts per plant, 100 kernal weight and plant height. The highest heritability was observed in karnel yield per pant (95.08%), followed by karnel yield per hectare (94.38%), 100 kernal weight (87.01%), immature and mature nuts per plant (82.24%, 80.32%), branches per plant (79.54%) and 100 nut weight (78.98%), while high values of genetic advance were obtained in all the characters except days to maturity and days to 50% flowering. The seed yield per plant showed the highly significant and positive association with nut size, number of nuts per plant, karnel size and days to 50% flowering. The number of mature nuts per plant had high positive direct effect on seed yield per hectare followed by nut size, shelling percentage, days to 50% flowering and days to maturity. Therefore, branches per plant, plant height, nuts per plant, nut size, karnel size, days to 50% flowering, shelling percentage and days to maturity were identified to be the important characters which could be used in selection for yield. Keywords: Genetic variability; heritability; genetic advance; groundnut DOI: http://dx.doi.org/10.3329/agric.v9i1-2.9476 The Agriculturists 2011; 9(1&2): 29-36

scholarly journals Estimates of Heterosis for Seed Yield and its Contributing Characters in Opium Poppy (Papaver somniferum L.)

2020 ◽  
Vol 9 (9) ◽  
pp. 2566-2573
Author(s):  
K. Nesara ◽  
Amit Dadheech ◽  
N.K. Padiwal ◽  
S. Bhaskar Reddy ◽  
Rajwanti Saran
Keyword(s):  
Seed Yield ◽  
Papaver Somniferum ◽  
Opium Poppy

Estimation of genetic variability for seed yield and its components in chickpea (Cicer arientinum L.) genotypes

2017 ◽  
Author(s):  
Aybegün Ton ◽  
Adem Emin Anlarsal
Keyword(s):  
Genetic Variability ◽  
Plant Height ◽  
Seed Yield ◽  
Seed Weight ◽  
Yield Component ◽  
Broad Sense ◽  
Broad Sense Heritability ◽  
Design Data ◽  
Climate Conditions ◽  
100 Seed Weight

The present experiment was conducted to determine magnitude of genetic variability with fifteen kabuli chickpea genotypes in the 2013/2014 and 2014/2015 growing season under Mediterranean climate conditions. In this present study seed yield per plant and yield component were investigated. The experiment was orginazed with three replications in randomized complate blocks design. Data were recorded on plant height, number of branches per plant, height of first podding node, full and total pods number per plant, seeds number per plant, 100-seed weight and seed yield per plant. Analysis of variance for seed yield per plant and its component showed significant differences among all genotypes. Broad-sense heritability ranged from 12.27% (total pod number per plant) to 93.88% (100-seed weight). Moderate and high estimates of broad sense heritability were observed for branches number per plant, harvest index and 100-seed weight. It can be concluded that the seed yield of chickpea can be improved by selecting these characters in breeding chickpea materials.

scholarly journals Genetic potential and heritability estimates of yield and yield associated traits in rape seed Brassica napus L

2015 ◽  
Vol 4 (2) ◽  
pp. 330-340
Author(s):  
Sadia Shaukat ◽  
Dr Raziuddin ◽  
Fahim Ullah Khan ◽  
Ibni Amin Khalil
Keyword(s):  
Brassica Napus ◽  
Plant Height ◽  
Seed Yield ◽  
Seed Weight ◽  
Yield Component ◽  
Brassica Napus L ◽  
Mean Values ◽  
Effective Selection ◽  
Heritability Estimates ◽  
Pod Length

To investigate genetic variability and heritability, eight Brassica napus genotypes were evaluated at New Developmental Research Farm, Faculty of Agriculture. Peshawar University, during 2010-11. Analysis of variance revealed significant differences (P≤0.01) among Brassica napus genotypes for all the studied characters. Mean values showed that maximum primary branches plant-1 (15) was observed for genotype PGRI-8, plant height (220.66 cm) for genotype CH-6 and PGRI-8, pods main raceme-1 (96.33) for genotype CH-1, pods plant-1 (994) for genotype PGRI- 8, pod length (8.3 cm) for genotype PGRI- 7, seeds pod-1 (27) for genotype CH-1, 1000-seed weight (3.97 g) for genotype CH-2, and seed yield plant-1 (91.1 g) for genotype PGRI-8. In t terms of heritability values, high broad sense heritability estimates were observed for primary branches plant-1 (0.83), plant height (0.78), pods main raceme-1 (0.65), seeds pod-1 (0.61), 1000-seed weight (0.61), while moderate heritability values were recorded for pod length (0.57), pods plant-1 (0.55), and seed yield plant-1 (0.50). In conclusion, the significant differences among Brassica napus genotypes showed that there is sufficient variability for effective selection. The trend of heritability (moderate to high) in the present study indicates that there is more genetic control and selection should lead to quick improvement. Furthermore genotype PGRI-8 surpassed all other genotypes in yield and yield component and could be used in future breeding programs. DOI: http://dx.doi.org/10.3126/ije.v4i2.12661 International Journal of Environment Vol.4(2) 2015: 330-340

scholarly journals The impact of plant density on the seed yield and the spring field pea’s yield component

Poljoprivreda ◽  
2020 ◽  
Vol 26 (1) ◽  
pp. 25-31
Author(s):  
Goran Krizmanić ◽  
Tihomir Čupić ◽  
Snežana V. Jovanović ◽  
Monika Marković ◽  
Andrija Brkić ◽  
...  
Keyword(s):  
Plant Height ◽  
Seed Yield ◽  
Plant Density ◽  
Block Design ◽  
Growing Season ◽  
Yield Component ◽  
Field Pea ◽  
Growing Seasons ◽  
Plant Densities ◽  
The Impact

The spring field pea is one of the most important coarse legumes. This study was carried out to investigate the response of a spring field pea variety to three plant densities (50, 100, and 150 plant m-2) during the 2017 and 2019 growing seasons in eastern Croatia. The field study was set up as a Randomized Complete Block Design (RCBD) in four replications. The results have demonstrated a significant effect of the plant densities and the growing seasons on the seed yield and on the following yield components: plant height and the number of pods/plant. The effect of plant densities on the number of seeds/pod and the thousand-seed weight was not significant. As for a growing season, the highest seed yield, plant height, the number of pods/plant were obtained in the second growing season. Furthermore, a maximum seed yield was recorded at the 150-plant m-2 plant density. This study has demonstrated that planting the spring field pea at different plant densities significantly modifies the spring field pea yield, plant height and number of pods/plant.

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